1951. 22nd edition. 391 pages. No dust jacket. Blue cloth with lettering. Contains black and white illustrations. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have moderate shelf wear, with rubbing and marking. Light bumping to corners and crushing to spine ends. Boards are slightly bowed with sunning to spine.